Abnormal G Sensor High U Output
DTC 56 ABNORMAL G SENSOR HIGH u OUTPUTDIAGNOSIS:
Faulty G sensor output voltage
TROUBLE SYMPTOM:
ABS does not operate.
WIRING DIAGRAM:
CHECK OUTPUT OF G SENSOR USING Vehicle Diagnostic Interface.
Select "Current data display & Save" on the Vehicle Diagnostic Interface.
Read G sensor output on the Vehicle Diagnostic Interface display.
Is the voltage -1.25 - 1.25 m/s when G sensor is in horizontal position?
CHECK POOR CONTACT IN CONNECTORS.
Turn the ignition switch to OFF.
Is there poor contact in connector between ABSCM&H/U and G sensor?
Repair the connector.
CHECK ABSCM&H/U.
Connect all connectors.
Erase the memory.
Perform the inspection mode.
Read out the DTC.
Is the same DTC as in current diagnosis still being output?
Replace the ABSCM&H/U.
CHECK ANY OTHER DTC APPEARANCE.
Are other DTCs being output?
Proceed with the diagnosis corresponding to DTC.
A temporary poor contact.
CHECK OPEN CIRCUIT IN G SENSOR OUTPUT HARNESS AND GROUND HARNESS.
Turn the ignition switch to OFF.
Disconnect the connector from ABSCM& H/U.
Measure the resistance between ABSCM&H/U connector terminals.
Connector & terminal
(B301) No. 10 - No. 21:
Is the resistance 5.0 - 5.6 kOhms?